324
WWUS20 KWNS 031757
SEL8
SPC WW 031757
MIZ000-OHZ000-LEZ000-LHZ000-032300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 648
NWS STORM PREDICTION CENTER NORMAN OK
200 PM EDT THU SEP 3 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
LOWER MICHIGAN
NORTHWEST OHIO
LAKE ERIE
LAKE HURON
* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 200 PM UNTIL
700 PM EDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY
ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...A CLUSTER OF STORMS WILL LIKELY FURTHER INTENSIFY AND
ORGANIZE ACROSS SOUTHERN LOWER MICHIGAN AS IT PROGRESSES
EAST-SOUTHEASTWARD ACROSS THE REGION, WITH DAMAGING WINDS AND SOME
LARGE HAIL THROUGH EARLY EVENING.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF
LANSING MI TO 10 MILES EAST NORTHEAST OF MOUNT CLEMENS MI. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 647...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR
31030.
...GUYER
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